title: beta-Galactosidase alpha-complementation. Effect of single amino acid substitutions.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D003488:Cyanogen Bromide; D004355:Drug Stability; D004926:Escherichia coli / Q000201:enzymology; D005696:Galactosidases / Q000378:metabolism*; D046911:Macromolecular Substances; D010446:Peptide Fragments / Q000032:analysis; D011487:Protein Conformation; D014443:Tyrosine; D001616:beta-Galactosidase / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D046911:Macromolecular Substances; D010446:Peptide Fragments; D014443:Tyrosine; D005696:Galactosidases; D001616:beta-Galactosidase; D003488:Cyanogen Bromide